Governor for engines.



, EATENTED MAR; 15,-19o4.f1

2 SHETS-SHEET L www5;

HHHI

EATENTED MAE. 15', l1904.

H. HOLZWARTH.

GOVERNOR EOE ENGINES. A PPLIOATION YILED DEO. 10, 1903.

v2 SHEETS-SHEET *2.

I0 MODEL.

Y WQEEL- NW im@ Patented Merch 15, 1904. A

PATENT OFFICE.

HANSV HOLzw-ARTH, OF HAMILTON Onno, AssIGNoR To THFIIOOVEN,

l OWENS, 4RENTSCHLER COMPANY, OF HAMILTON, OHIO.A

l f i Ysoil/EF:Non FOR ENGINES, f`

i j srncinrcnnronvfermmg part ef ,Lettere PetentNe. 754,563, deted Maren 15,v 1904. l Application filed December 10, 1903.. Serial No. 184,635- (N modelf) To, wZZiwI/Omi it. #my concern:

zen of Germany, residing in Hamilton, Butler county, Ohio, (post-oiiice address, Hamilton,

Ohio,) haveinventedfcertain `new and useful Improvements 1n Governorsfor Engines, of'

which the followinglxis aspecification.

V This invention, pertaining to improvements 'in governors for engines,while'of general 'applicability has been-contrivedr withl specialreference'to the high-speed conditions found inconnection with steam-turbines, conditions under which all governors; of which I'have practical-knowledge have developed serious defects 1 MyI improvementsV will? be readilyunder-v stood from the following description, taken c a face view of the-same with parts broken away one pair ofthetransmitting-arms, and aplan of one of the .governor-weights; A In the drawings-1 indicates the governorl spindle; 2, a sleeve reciprocating thereon under .the influence of thegovernor-and adapted j' tohave connectionwith controlling-valve ap' hin ,connection with the accompanying drawn ings, in Wliichernor embodying myy improvements; Fig. 2,'

and partsfapp'eari'ng in sectionat rightangles to theaXis of the governorgfFig 3, a plan of paratus 'as` usual; 3,- a cylindrical casing fast upon. the governor-spindle and containing the governor mechanism; 4, a cross-spindle inter# secting ithe axis of the governorspindle through which it passes preferably with considerablelooseness, so as to be capablelof endwise shifting; 5, the governor-weights sliding freely on thecross-spindle; 6, a pair of collars on each governor-weight; 7 caps screwing ladjustabl'y upon the outer ends of the crossspindle and freelyeengagingapertures in the rim of the casing; 8, helical springs surrounding the cross-spindle and acting compressively' between the governor-weights and the caps 7, these springs constituting the centripetal agents of the governor and opposing the centrifugal action of the weights; -9, a pair of arms pivoted to the casing and having their vinner ends provided with rollers engaging the Fig. 4

i l s groove formed between the collars 6 of a govz Y Be itknownthat I, HANS HOLZWARTH, a citiernor-weight, there being apair of 'these arms foreach of the governor-weights; l0, the pivots'of these arms, the samebeing mounted in lugs'fprojecting inwardly from one end wall of the casing; l l1, a pair of collars on sleeve 2'; 12, a pair-of armsfor each pair of arms 9 and 'fast with them upon the pivots 10, the free ends of the arms 12 carrying rollers engag'ing the. groove formed between the collars 11;'13, a collar fast on the governor-spindle 'between cross-spindle 4 and vthe inner end of sleeve 2; 14, prongs projecting outwardly fromthis collar along the governor-spindle toward Ithe "end of-the'sleeva the side faces ofl these prongs being provided with grooves parallel with the governor-spindle; l5,`simi lai" prongs projecting inwardly from the inner Y f' t y end of slee`ve2 and' lying between prongs 14; ;1Figure l is adiarnetrical section of a gov- 16, balls vdisposed between the contiguous faces of alternating prongsli and'll and lying in the grooves formed in the side faces of the prongs; 17, a guideway formed in each gov ernorweight parallel with the cross-spindle,

and .18 rollers supported `by auend wall of the casing andengaging these guide-grooves..v

Thev general action of the governor 1s as usuaLas wlll be obvious-that lsto say,`as

thefgovernor-weights move o utwardly` and inwardly the arms' transmit adjusting 'motion endwise to sleeve 2, which motionis jto be utilized in effecting' the adjustment of valve apparatus.' v 1A pair of arms 9, takenl in conjunction with its fellow pair of arms 12,' forms a skeleton bell-crank, one member of which straddles a governor weight, while the otherA member straddles the sleeve, the result being a symmetrical disposition of the mass in motion and a symmetrical transmission of the strains of adjustment.. Ihe tension of thesprings may outward upon the cross-spindle. The balls between the prongs furnish a roller-'bearing to meet the tangential thrusts involved in rotating the sleeve with the governor-spindle and permit the sleeve to move endwise in sensitive response to the iniiuence of the governing forces. The grooves in the side faces of vbe adjusted by screwing the cap 7 inward or the prongs stop short of the ends of the prongs to prevent the displacement of the balls, this stopping off of the grooves being preferably effected by thin end plates secured on the ends of the prongs.

The driving power for the governor parts is transmitted through the casing, one head of which is firmly keyed to the governor-spindle and both heads being firmly bolted and preferably doweled to the rim connecting the heads.

The cross-spindle 4 passes freely through the governor-spindle and preferably without any contact whatever with it, the cross-spindle and the parts carried by it being thus free to shift relative to the governor-spindle and adjust the center of gravity into coincidence with the geometrical center of the structure. The looseness of the cross-spindle where it passes through the governor-spindle need be only sufficient to insure against deleterious iniiuence and to avoid the necessity for very accurate construction. In case this looseness is made excessive then the guiding arrangement formed by guides 17 and rolls 18 is to be recommended. Otherwise these guiding features may be omitted. In the construction illustrated each governor-weight is guided by a pair of rolls 18, each roll engaging a side .wall of the guide-groove.

I claim as my invention- 1. In a governor, the combination, substantially as set forth, of a governor-spindle, a sleeve mounted to slide thereon, a casing fast on the governor-spindle and having apertures in its rim, a cross-spindle intersecting the governor-spindle, weights sliding on the crossspindle, springs upon the cross-spindle for urging the weights inwardly, caps screwed upon the cross-spindle exterior to the springs and engaging the apertures in the rim of the casvA ing, and lever connections between the weights and the sleeve.

2. In a governor, the combination, substantially as set forth, of a governor-spindle, a sleeve mounted to slide thereon, a casing fast on the governor-spindle, a cross-spindle intersecting and free for crosswise motion in the governor-spindle, weights sliding on the crossspindle, springs urging the weights inwardly, caps screwed upon the cross-spindle exterior to the springs and engaging the rim of the casing, and lever connections between the weights and the sleeve.

3. In a governor, the combination, substantially as set forth, of a governor-spindle, a sleeve mounted to slide thereon, a casing fast on the governor-spindle, a cross-spindle intersecting and free for crosswise motion in the governor-spindle,weights sliding on the crossspindle, springs urging the weights inwardly, caps screwed upon the cross-spindle exterior to the springs and engaging the rim of the casing, lever connections between the weights a'nd the sleeve, and guide-rollers carried by the casing and cooperating with guideways on the weights.

4:. In a governor, the combination, substantially as set forth, of a governer-spindle, a sleeve mounted to slide thereon, a casing fast on the governor-spindle, a cross-spindle intersecting the governor-spindle, weights sliding on the cross-spindle, springs urging the weights inwardly, caps screwed upon the cross-spindle exterior to the springs and engaging the rim of the casing, pivots carried by the casing at right angles to,i the axis of the governor-spindle, and bell-crank levers mounted on said pivots and straddling the weights and the sleeve and operatively engaging collars on the Weights and sleeve.

5. In a governor, the combination, substantially as set forth, of a governor-spindle, a sleeve mounted to slide thereon, a casing fast on the governor-spindle, a cross-spindle intersecting the governor-spindle, weights sliding` on lthe cross-spindle, springs urging the weights inwardly, caps screwed upon the cross-spindle exterior to the springs and engaging the rim of the casing, lever connections between the weights and the sleeve, cooperating prongs upon the sleeve and governor-spindle provided with grooves in their contiguous side faces, and balls disposed in said grooves.

6. In a governor, the combination, substantially as set forth, of a governor-spindle, a sleeve mounted to slide thereon, a casing-head fast on the governor-spindle, a rim secured to said head, an open head secured to the opposite face of said rim and free of ythe governorspindle, a cross-spindle intersecting the governor-spindle, weights sliding on the crossspindle, springs urging the weights inwardly, caps screwed upon the cross-spindle exterior to the springs and engaging the rim of the casing, and lever connections between the weights and the sleeve and working through the open head of the casing.

HANS HOLZWARTH.

Witnesses:

SAM D. FirroN, Jr., ELMER R. SHxrLEY. 

